package com.neusoft.demo2;

import java.util.Scanner;

public class Test1 {
    public static void m1(Scanner input) {
        //Scanner input = new Scanner(System.in);
        int[] a = new int[4];
        System.out.println("请输入一个数: ");
        int num = input.nextInt();
        System.out.println(num);
    }

    public static Scanner m2() {
        Scanner s = new Scanner(System.in);
        return s;
    }

    public static void main(String[] args) {
//        Scanner s = new Scanner(System.in);
//        m1(s);

        Scanner input = m2();
        int num = input.nextInt();
        System.out.println(num);
    }
}
